Heineich stollweeck



(No Model.)

H. STOLLWERGK.

STEAM BOILBR.

Patented Feb. 13, 1883.

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UNITED STATES PATENT OFFICE.

HEINRICH STOLLWERGK,.OF COLOGNE-ON-THE-RHINE, PRUSSIA, GERMANY, ASSIGNOR/'IO GEBR, STOLLWERGK, OF SAME PLACE.

STEAMiBO'I LER.

SPECIFICATION formingpart of Letters Patent No. 272,347, dated February 13, 1883.

v Application tlledDecember15,1882. (No model.)

To all whom 'it may concern Beit known that l, HEINRICH S'IoLLWERcK, ofthe city ofGologne-on-the-lthine, in the Kingdom'of Prussia. and German Empire, have invented a new and useful Improvementin Stea'm,

ing such means by which the feed-water, be-

fore entering the boiler proper, is caused to pass lthrough one, two, or more smaller boilers,

-. and there to be broughtinto contact with ajet ot' steam and a series of 'sieve-like or perforated plates, by which said feed-water is freed from itsincrustation before leaving the smaller boiler' or boilers. s

To enable others skilled in the art to better understand the nature of my invention, I will now proceed to describe the same when applied 3o to a tubular boiler, through the heating-pipes -of which a constant circulation of water is maintained, the annexed drawings illustrating such boiler in combination with my improved apparatus by which thefeed-wateris freed from 5 itsincrustation before entering the tubes ot' the said tubular boiler. l

In the accompanying drawings, forming part of my specilication, Figure l is a longitudinal vertical section through boiler K, containing 4o my improvement. Fig. 2 is av front view of those parts of the boiler embodying my improvement. Fig. 3 is a plan View of the same in section. Figs. 4 and 5 are transverse vertical sections of the boilers K K, respectively. Reference being had to the accompanying drawings, K K represent two boilers mounted in an inclined position above the main boiler, and communicating therewith by means ofthe short pipes b b and the'receiving-chamber c. 5o The boiler K also communicates with the boiler proper by means of the feed-water-discharge pipe e, while the feedwater inlet consists of the pipe c, entering boiler K. The boilers K K are in connection with each other through the pipe d, and are surmounted by a steam-reservoir, communicating with the same by means of theshort pipes ff. The boilers K K are provided inside with a numberof sievelike or perforated plates, preferably made of corrugated vsheet metal, and intended for re- 6o ceiving and collecting the deposits of incrustation from the feedwater, and arranged either in horizontal layers, as at g in Fig. 3, or set in a vertical position and extending across the inside ofthe boiler, as at h in the same figure.

Having thus described the apparatus for freeing feed-water from its incrustation before `entering the main boiler, I will now proceed ber a., and from there, through the short pipes b b, into the boilers K K', partly filled with water. The feed-water, preferably in a heated 7 5 condition, enters the boilerK through the feedwater pipe c, here meeting the stean1bubbles from the short pipe b, either in a rectangular or opposite direction, and,yielding to the circulating current of Water and steam, is carried 8o along by the latter and driven through the sieve-like or perforated plates g in the boiler K, depositingA thereon the greater part of its incrustation. Subsequentlypassingthrough the bent pipe d,it enters theotherboiler,K',again 85 meeting a jet of steam entering through the short pipe b in a direction rectangular or opposite to the said stream of feed-water, and with the same result as in the other boiler, the incrustation havingremained in the feed-wa- 9o ter again being deposited during its passage through the sieve-like or perforated plates h, arranged in this boiler K'. The feed-Water, now4 having been thoroughly freed from its incrustation, escapes from theboiler K through 9 5' the pipe e and enters the main boiler, there to be evaporated and transformed into steam. The mouthsof the pipes d and e are provided with ne sieves, in order to prevent the pas sage of any remaining small particles of incrus- Ico tation with the feed-water. The steam admit ted into theboilers K K through the short pipes ICL l) b, after having been utilized, as described, for freeing the feed-water from its incrustation, passes through the short pipes ff, and is eollected in the steam-reservoir mounted above the two boilers K K. Here, coming1 in contact with one or more plates of sheet metahit is freed from its water by condensation, and can be taken from the reservoir in a practically dry state, to be used for any desired purpose.

In cleaning the boilers K K from the incrustation deposited therein it is only necesi sary to take out the sieve-like or perforated plates, when they may be readily scraped O and theincrustation removed therefrom, after which they may be reinserted in the boilers.

Though the use of two such boilers K K may be found suicient in most instances, I wish it distinctly understood that I do not conline myself to this number, but that an additional number lnay be added without deviating from the nature of my invention.

The advantages derived from the apparatus, as above described, are self-evident, and in a general way may be summed up as follows, Viz:

First, a feed of water is obtained which is practically free from any particles producing incrustation, whereby the burning of the fireplates and pipes is prevented and the quality ofthe heating-surface is greatly improved.

Second, a thorough utilization of the heating-surfaces is obtained, the pipes being free from incrustation, and therefore better absorbimgr the fire-gases.

Third, the incrustation is collected in such parts of the boiler as are easy of access and not in contact with the heating-gases.

Having' thus described my invention, what I claim as new, and desire to secure by Letters' Patent, is-

1. In a feed-water purifier for steam-boilers, the combination of a cylinder or boiler having perforated plates or diaphragms, a water-inlet pipe located at one end of said diaphragms, a water-outlet pipe arranged at the other end thereof, and a steam-inlet pipe arranged at the end of the boiler at right angles to the waterinlet pipe, substantially as and for the purpose set forth.

2. The combination of the steam-receiver D with a subjacent cylinder or boiler having perforated diapliragms or plates, water inlet and outlet openings, and steam inlet and discharge pipes, substantially as and for the purpose set forth.

3. In an apparatus for freeing feed-water from incrustation, the combination, with two or more boilers, K K', mounted above the main boiler in an inclined position, and entered by 'the short water and steam ejecting pipes b b and opposite to the latter by the feed-water inlet c and circulation-pipe d, respectively, of a series of sieve-like or perforated plates, arranged as described, the feed-water to be freed from its incrustation being so conducted as to be repeatedly met by a jet of steam before passing through all the series of perforated plates and entering the boiler proper, substantially as and for the purpose set forth.

In testimony whereof l have signed my name to this specilieation in the presence of two subseribing witnesses. v

HEINRICH STOLLWERGK.

Witnesses:

TH. GEITMANN, SAMUEL SPACKMAN. 

